EPiServer CMS 6 site that suddenly got this error in edit mode. Found alot of posts saying something about changing the system time could cause this but this is not relevant to my case.
Anyone got any suggestions?
Stig
It was actually the Global.asax that caused this problem. Not exactly sure what the problem was in the global.asax but if I set the global.asax to inherit from EPiServer.Global insted of the codebehind it worked great. (Yes, the codebehind inherited EPiServer.Global) I guess that resulted in missing HTTP handlers or something :)